Stages-of-Infection.pptx

stages of infection

1. Infection

2. An invasion of pathogen or microorganism into the body that are capable to producing disease.

3. Stages of Infection

4. Incubation Stage

5. Time from the entrance of pathogen into the body to appearance of the first symptoms, during this time— Pathogen grow and multiply.

6. Prodome or Prodomal Stage

7. Time from onset of nonspecific symptoms such as fever, malaise, and fatigue to move specific symptoms .

8. Illness Stage

9. Time during which child demonstrates signs and symptoms specific to an infection type.

10. Convalescent Stage

11. Time when acute symptoms of illness disappear.

12. The presence of a pathogen does not mean that an infection will necessarily begin. The development of an infection happens in a cycle that depends on all elements in the chain of infections.

13. 1. Infectious Agent

14. A microbial organism with the ability to cause disease. The greater the organism virulence (ability to grow and multiply), invasiveness (ability to enter tissue) and pathogenicity (ability to cause disease) the greater the possibility that the organism will cause an infection. Infectious agents are bacteria, virus, fungi, and parasites.

15. 2. Reservoir

16. A place within which microorganism can thrive and reproduce. For example, microorganism thrive in human beings, animals, and inanimate objects such as water, table tops, and doorknobs.

17. 3. Portal of Exit

18. A place of exit providing a way for a microorganism to leave the reservoir. For example, the microorganism leave the reservoir through the nose or mouth when someone sneezes or coughs Microorganism, carried away from the body by feces, may also leave the reservoir of an infected vowel

19. 4. Mode of Transmission

20. Method of transfer by which the organism moves or is carried from one place to another. The hands of health care worker may carry bacteria from one person to another.

21. 5. Portal of Entry

22. An opening allowing the microorganism to enter the host. Portals also result from tubes placed in body cavities, such as urinary catheters, or from punctures produced by invasive procedures such as intravenous fluid replacement.

23. 6. Host

24. A person who cannot resist a microorganism invading the body, multiplying, and resulting in infection. The host is susceptible to the disease, lacking immunity or physical resistance to overcome the invasion by the pathogenic microorganism.

25. Evaluation

26. Answer the diagram below.

27. Assignment

28. M ake a poster about preventing infection.

29. Thank you Class for your cooperation!